Relates the story of Homan Walsh, a fifteen-year-old boy who in 1847 successfully flew a kite over the Niagara River from Canada to the United States, enabling work to begin on a suspension bridge over Niagara Falls.
"The Thea Sisters are taking a trip to Canada! They have been invited to do some bird-watching with a group of friends. The girls are enjoying learning more about Canada and their love for hockey. But during their trip, one of their group members mysteriously disappears. They set off to Niagara Falls to find him. Can they solve the mystery?"--Back cover.